Sorry guys , I just found out that we just need to switch the OVF power save mode to off the histogram display will come out again. ( It is at set up NO.2)
I noticed that the histogram display on my EVF for X100s only became an empty rectangular box after my upgrades to firmware 1.03. The histogram is alright on the TFT screen but cannot work once you put oyur eyes to the EVF.
Anybody out there have the same problem?